Hi Naim,
This is a limitation of new version?
I don't think so - version 11 had similar restrictions. What I would agree is that it's definitely being handled differently than in previous versions. I have opened CR #765434 to investigate this behaviour further - I will update this thread when we learn more and better understand the intended behaviour.
I'm thinking to add some .Net code on mobilink server to filter that registers. There is other way to do that?
Yes, you can do this on the server-side by writing the table upload event (in SQL, Java, or .NET) to filter out the rows explicitly. I would generally recommend a SQL stored procedure in the consolidated database for the best performance.
Regards,
Jeff Albion
SAP Active Global Support